CN220253117U - Electric operating mechanism of isolating switch - Google Patents
Electric operating mechanism of isolating switch Download PDFInfo
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- CN220253117U CN220253117U CN202321883505.8U CN202321883505U CN220253117U CN 220253117 U CN220253117 U CN 220253117U CN 202321883505 U CN202321883505 U CN 202321883505U CN 220253117 U CN220253117 U CN 220253117U
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- knob switch
- switch
- gear
- bracket
- stop lever
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Abstract
The utility model relates to an electric operating mechanism of an isolating switch, which comprises a bracket, an electric driving mechanism, a gear transmission mechanism and an output shaft, wherein the electric driving mechanism, the gear transmission mechanism and the output shaft are arranged on the bracket; the clutch mechanism is respectively connected with the electric driving mechanism and the gear transmission mechanism; the middle part of the stop lever is rotatably arranged with the bracket and is suitable for elastic rotation on the bracket, one end of the stop lever is abutted with the knob switch, and the other end of the stop lever is suitable for shielding the manual operation opening; the knob switch is rotationally arranged on the bracket and is respectively matched with the stop lever and the clutch mechanism; when the knob switch rotates to an on state, the knob switch drives the clutch mechanism to switch to a separation mode, and meanwhile, the knob switch drives the stop lever to move away from the manual operation port. According to the electric operating mechanism of the isolating switch, the safety is improved, misoperation can not occur, and manual operation is easy and labor-saving.
Description
Technical Field
The utility model relates to the field of electrical equipment, in particular to an electric operating mechanism of an isolating switch.
Background
The isolating switch (commonly called as a knife switch) generally refers to a high-voltage isolating switch, namely an isolating switch with the rated voltage of 1kV or above, is generally called as an isolating switch for short, is the most used electric appliance in the high-voltage switching electric appliance, has a simpler working principle and structure, but has larger influence on the design, establishment and safe operation of a substation and a power plant due to large use amount and high requirement on working reliability.
The isolating switch has obvious breaking point to ensure the safety of maintainer, and has no special arc extinguishing device to cut off the load current and short circuit current, so that the isolating switch must be operated in case of breaking circuit.
The operating mechanism is used for controlling the isolating switch to carry out opening and closing operation, and the existing operating mechanism has the following defects in use:
1. the linkage between manual operation and electric operation is avoided, and hidden danger (electric misoperation can occur) exists during maintenance;
2. the operating mechanism has no clutch function, and has larger operating moment during manual operation and inconvenient operation.
Disclosure of Invention
The utility model aims to solve the technical problems that: the utility model provides a solve the not enough of prior art, a isolator electricity operation clutch, the electric operation security of solving the past isolator is not high, the big problem of manual operation moment.
The technical scheme adopted for solving the technical problems is as follows:
there is provided an electric operating mechanism of a disconnecting switch, comprising
The device comprises a bracket, an electric driving mechanism, a gear transmission mechanism and an output shaft, wherein the electric driving mechanism, the gear transmission mechanism and the output shaft are arranged on the bracket, and a manual operation port is formed in the upper end of the output shaft;
the clutch mechanism is respectively connected with the electric driving mechanism and the gear transmission mechanism;
the middle part of the stop lever is rotatably arranged with the bracket and is suitable for elastic rotation on the bracket, one end of the stop lever is abutted with the knob switch, and the other end of the stop lever is suitable for shielding the manual operation opening;
the knob switch is rotationally arranged on the bracket and is respectively matched with the stop lever and the clutch mechanism; when the knob switch rotates to an on state, the knob switch drives the clutch mechanism to switch to a separation mode, and meanwhile, the knob switch drives the stop lever to move away from the manual operation port;
when the knob switch rotates to a closing state, the knob switch drives the clutch mechanism to switch to a linkage mode, and meanwhile, the knob switch drives the stop lever to shield the manual operation opening.
Further, the clutch mechanism comprises
The fixed shaft is fixedly arranged on the bracket;
the upper gear and the lower gear are rotatably arranged on the fixed shaft, and the lower gear is suitable for being elastically abutted with the upper gear upwards so as to enable the two gears to be connected in a key way and synchronously rotate;
the separation driving piece is sleeved on the fixed shaft and is suitable for moving up and down, the lower end of the separation driving piece is abutted with the upper gear, and the upper end of the separation driving piece is abutted with the knob switch; and
the two arc-shaped guide grooves are formed in the lower end of the knob switch, the bottom surfaces of the guide grooves are guide inclined planes and are abutted with the upper end of the separation driving piece;
when the knob switch rotates from off to on, the knob switch drives the lower gear to be separated from the upper gear through the separation driving piece; when the knob switch rotates from opening to closing, the upper gear is elastically reset upwards and is connected with the upper gear key.
Further, the separation driving member includes
The sliding block is sleeved on the fixed shaft and moves up and down along the fixed shaft;
the upper ends of the ejector rods are abutted with the bottom surface of the arc-shaped guide groove, and the lower ends of the ejector rods are abutted with the upper end surface of the lower gear.
Further, the knob switch is at the installation knob switch structure of support:
the upper end of the fixed shaft passes through the knob switch and is clamped with the baffle plate, and the baffle plate is abutted against the knob switch to limit the knob switch to move upwards;
the support is provided with a limiting sliding groove, the lower end of the knob switch is provided with a limiting sliding rod, and the limiting sliding rod is inserted into the limiting sliding groove to guide the knob switch to rotate.
Further, a compression spring is sleeved on the fixed shaft, the upper end of the compression spring is abutted against the lower gear, and the lower end of the compression spring is abutted against the bracket.
Further, a first concave part and a first convex part are formed in the circumferential direction of the knob switch;
when the first concave part is contacted with a stop lever, the stop lever shields a manual operation port;
when the first protrusion contacts the stop lever, the stop lever is moved away from the manual operation opening.
Further, a second concave part and a second convex part are formed on the knob switch;
the bracket is provided with a first micro switch which is electrically connected with the controller;
when the knob switch is closed, the first micro switch is positioned in the second concave part, and the stop lever is in contact with the first concave part;
when the knob switch rotates to be turned on, the second bulge triggers the first micro switch, and the second bulge abuts against the stop lever.
Further, the bracket comprises a top plate, a bottom plate and a plurality of connecting columns;
the upper ends of the connecting columns are connected with the top plate, and the lower ends of the connecting columns are connected with the bottom plate.
Further, the electric driving mechanism comprises a stepping motor and a duplicate gear;
the double gear is rotatably arranged on the support, a large gear of the double gear is connected with an output gear on the stepping motor, and a small gear of the double gear is connected with the clutch mechanism.
Furthermore, a protective cover is arranged outside the bracket, so that the whole bracket is wrapped in the protective cover;
the protective cover is provided with a jack which is vertically opposite to the manual operation opening.
The beneficial effects of the utility model are as follows:
according to the electric operating mechanism of the isolating switch, the clutch mechanism and the stop lever for controlling the opening and closing of the manual operating port are added, the clutch mechanism and the stop lever are controlled to move simultaneously through the knob switch, when the knob switch is closed, the clutch mechanism is in a linkage mode, and meanwhile the stop lever covers the manual operating port, so that the whole operating mechanism can be electrically driven; when the knob switch rotates to be opened, the clutch mechanism is triggered to enter a separation mode, the stop lever is driven to move out from the upper part of the manual operation opening, the operation mechanism can enter manual operation at the moment, an operator can directly drive the output shaft to rotate in a switching-on/off mode by inserting the handle into the manual operation opening, and when the knob switch rotates, the clutch mechanism is in the separation mode, the motor and the gear mechanism can not form resistance for the output shaft, so that the output shaft can easily rotate.
According to the electric operating mechanism of the isolating switch, the safety is improved, misoperation can not occur, and manual operation is easy and labor-saving.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of an electrically operated mechanism (knob switch in off) of an isolating switch of the present utility model;
FIG. 2 is a schematic illustration of a clutch mechanism;
FIG. 3 is a semi-sectional view of the clutch mechanism;
FIG. 4 is a schematic diagram of a rotary switch;
FIG. 5 is a schematic diagram of an upper gear;
FIG. 6 is a schematic diagram of a lower gear;
FIG. 7 is a schematic view of a split drive;
FIG. 8 is a schematic view of the operating mechanism mounted on the disconnector;
FIG. 9 is a schematic view of an electrically operated mechanism with a protective cover installed;
FIG. 10 is a schematic view of the electrical operating mechanism of the disconnecting switch of the present utility model (with the rotary switch open);
FIG. 11 is a schematic diagram of an electrically operated mechanism of the disconnector of the present utility model;
wherein,
1. the device comprises a bracket, 11, a top plate, 12, a bottom plate, 13, connecting columns, 14, an upper half shell, 15 and a lower half shell;
2. clutch mechanism, 21, fixed shaft, 22, upper gear, 221, key protrusion, 23, lower gear, 231, key slot, 24, separation driving piece, 241, slide block, 242, ejector rod, 25, compression spring,
3. the rotary switch 31, the guide groove 311, the guide inclined plane 32, the first concave part 33, the first bulge 34, the second concave part 35, the second bulge 36 and the limit slide bar;
4. an isolating switch;
5. a protective cover, 51, jack;
6. an electric driving mechanism 61, a stepping motor 62 and a duplicate gear;
7. an output shaft 71, a manual operation port;
8. a stop lever;
91. the first micro-switch, 92, the separation blade.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present utility model by way of illustration only, and thus show only the constitution related to the present utility model.
As shown in fig. 1 to 10, an electric operating mechanism of a disconnecting switch comprises
The device comprises a bracket 1, an electric driving mechanism 6, a gear transmission mechanism and an output shaft 7 which are arranged on the bracket 1, wherein a manual operation port 71 is formed at the upper end of the output shaft 7;
the clutch mechanism 2 is respectively connected with the electric driving mechanism 6 and the gear transmission mechanism;
the middle part of the stop lever 8 is rotatably arranged with the bracket 1 and is suitable for elastic rotation on the bracket 1, one end of the stop lever is abutted with the knob switch 3, and the other end of the stop lever is suitable for shielding the manual operation opening 71;
the knob switch 3 is rotatably arranged on the bracket 1, and the knob switch 3 is respectively matched with the stop lever 8 and the clutch mechanism 2; when the knob switch 3 rotates to an on state, the knob switch 3 drives the clutch mechanism 2 to switch to a separation mode, and meanwhile, the knob switch 3 drives the stop lever 8 to move away from the manual operation port 71;
when the knob switch 3 rotates to the off state, the knob switch 3 drives the clutch mechanism 2 to switch to the linkage mode, and simultaneously the knob switch 3 drives the stop lever 8 to block the manual operation opening 71.
The gear transmission mechanism belongs to the conventional technical means in the field, and is not described herein.
A torsion spring is arranged between the stop lever 8 and the bracket 1 and is used for providing a rotation force for the stop lever 8.
Specifically, as an alternative implementation of the present embodiment, as shown in fig. 2 to 7, the clutch mechanism 2 includes
A fixed shaft 21 fixedly provided on the bracket 1;
an upper gear 22 and a lower gear 23 rotatably disposed on the fixed shaft 21, the lower gear 23 being adapted to elastically abut upward against the upper gear 22 to key-connect the two gears and rotate synchronously;
a separation driving member 24 which is sleeved on the fixed shaft 21 and is suitable for moving up and down, the lower end of the separation driving member is in contact with the upper gear 22, and the upper end of the separation driving member is in contact with the knob switch 3; and
two arc-shaped guide grooves 31 which are arranged at the lower end of the knob switch 3, wherein the bottom surface of the guide grooves 31 is a guide inclined surface 311 and is abutted with the upper end of the separation driving piece 24;
when the knob switch 3 rotates from off to on, the knob switch 3 drives the lower gear 23 to be separated from the upper gear 22 through the separation driving piece 24; when the knob switch 3 rotates from the open state to the closed state, the upper gear 22 is elastically restored upward and is keyed to the upper gear 22.
As shown in fig. 3, a blocking piece 92 is provided on the fixed shaft 21, and the blocking piece 92 is used to restrict upward movement of the upper gear 22 to control the position of the upper gear 22 on the fixed shaft 21.
As shown in fig. 5 and 6, a pair of key protrusions 221 are provided at the lower end of the upper gear 22, a pair of key grooves 231 are provided at the upper end of the lower gear 23, the key protrusions 221 are engaged with the key grooves 231, so that the clutch mechanism 2 is brought into the interlocking mode, and the key protrusions 221 are separated from the key grooves 231, so that the clutch mechanism 2 is brought into the separating mode.
Specifically, as an alternative implementation of the present embodiment, as shown in fig. 7, the separation driving member 24 includes
A slider 241 which is coupled to the fixed shaft 21 and moves up and down along the fixed shaft 21;
and a pair of ejector rods 242 fixedly arranged on two sides of the sliding block 241, wherein the upper ends of the ejector rods 242 are abutted with the bottom surface of the arc-shaped guide groove 31, and the lower ends of the ejector rods 242 are abutted with the upper end surface of the lower gear 23.
Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 3 and fig. 4, the structure of the knob switch 3 mounted on the bracket 1 is as follows:
the upper end of the fixed shaft 21 passes through the knob switch 3 and is clamped with a baffle 92 at the upper end of the fixed shaft 21, and the baffle 92 abuts against the knob switch 3 to limit the knob switch 3 to move upwards;
the support 1 is provided with a limiting sliding groove, the lower end of the knob switch 3 is provided with a limiting sliding rod 36, and the limiting sliding rod 36 is inserted into the limiting sliding groove to guide the knob switch 3 to rotate.
The limiting sliding groove is of an arc-shaped structure, the radian is 90 degrees, and the limiting sliding rod 36 limits the rotation angle of the knob switch 3 to 90 degrees.
The baffle 92 is a C-shaped baffle 92 and is clamped on the fixed shaft 21.
The lower end of the fixed shaft 21 is fixedly connected with the bracket 1, so that each part sleeved on the fixed shaft 21 can rotate around the fixed shaft 21.
Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 2 and fig. 3, the fixed shaft 21 is sleeved with a compression spring 25, the upper end of the compression spring 25 abuts against the lower gear 23, and the lower end of the compression spring abuts against the bracket 1.
Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 4, the knob switch 3 is circumferentially provided with a first concave portion 32 and a first convex portion 33;
as shown in fig. 1, when the first recess 32 is in contact with the bar 8, the bar 8 shields the manual operation port 71;
as shown in fig. 10, when the first protrusion 33 contacts the bar 8, the bar 8 is removed from the manual operation port 71.
Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 4, the knob switch 3 is provided with a second concave portion 34 and a second convex portion 35;
a first micro switch 91 is installed on the bracket 1, and the first micro switch 91 is electrically connected with the controller;
as shown in fig. 8, when the knob switch 3 is turned off, the first micro switch 91 is located in the second recess 34, and the bar 8 is in contact with the first recess 32;
as shown in fig. 10, when the knob switch 3 is turned on, the second protrusion 35 triggers the first micro switch 91, and the second protrusion 35 abuts against the stop lever 8.
Specifically, as an alternative implementation of the present embodiment, as shown in fig. 1, the bracket 1 includes a top plate 11, a bottom plate 12, and a plurality of connection posts 13;
the upper ends of the connecting columns 13 are connected with the top plate 11, and the lower ends are connected with the bottom plate 12.
The bracket can be made into a shell structure besides the structure in the figure, as shown in fig. 11, the bracket comprises an upper half shell and a lower half shell, and the gear transmission mechanism and the clutch mechanism are positioned in the shell.
Specifically, as an alternative implementation in the present embodiment, the electric drive mechanism 6 includes a stepping motor 61 and a duplex gear 62 as shown in fig. 1;
the double gear 62 is rotatably arranged on the bracket 1, a large gear of the double gear 62 is connected with an output gear on the stepping motor 61, and a small gear of the double gear 62 is connected with the clutch mechanism 2.
Specifically, as an alternative implementation manner in this embodiment, the protective cover 5 is disposed outside the bracket 1 as shown in fig. 9, so that the entire bracket 1 is wrapped in the protective cover 5;
the protective cover 5 is provided with a jack 51, and the jack 51 is vertically opposite to the manual operation opening 71.
The indication board is additionally arranged on the knob switch 3 and is used for indicating that the knob switch 3 is in an on or off state. Correspondingly, an indication hole is formed in the protective cover 5.
The first micro switch 91 is used for identifying the position of the knob switch 3 and sending an electrical signal to the controller; the two sides of the output shaft 7 in the operating mechanism are also respectively provided with a second micro switch and a third micro switch, and the second micro switch and the third micro switch are respectively used for monitoring whether the output shaft 7 is in a closing state or a closing state.
The operation process of the electric operating mechanism of the isolating switch 4 is as follows:
when the operating mechanism is in the motoring mode:
the knob switch 3 is in a closed state, namely, as shown in fig. 1 and 8, at the moment, the first concave part 32 of the knob switch 3 is matched with the stop lever 8, the second concave part 34 is matched with the first micro switch 91, the stop lever 8 shields the manual operation opening 71, the clutch mechanism 2 is in a linkage mode, and the stepping motor 61 at the moment can directly drive the output shaft 7 to rotate through the clutch mechanism 2 and the gear transmission mechanism, so that the isolating switch 4 is controlled to be switched on and off.
When the disconnecting switch 4 needs to be overhauled, the operating mechanism needs to be switched to a manual operation mode, at this time, the knob switch 3 rotates to be turned on, at this time, the first bulge 33 of the knob switch 3 is matched with the stop lever 8, the second bulge 35 is matched with the first micro switch 91, the separation driving piece 24 drives the upper gear 22 to be separated from the lower gear 23, the clutch mechanism 2 enters the separation mode, at this time, the stepping motor 61 cannot drive the output shaft 7 to rotate even if being electrified, the manual operation port 71 is in an open state, an operator can manually control the output shaft 7 to rotate through an operation handle, and in the rotating process, the clutch mechanism 2 is in the separation mode and cannot influence the rotation of the output shaft 7, so that the rotation of the output shaft 7 is more labor-saving.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. An electric operating mechanism of a disconnecting switch is characterized by comprising
The device comprises a bracket, an electric driving mechanism, a gear transmission mechanism and an output shaft, wherein the electric driving mechanism, the gear transmission mechanism and the output shaft are arranged on the bracket, and a manual operation port is formed in the upper end of the output shaft;
the clutch mechanism is respectively connected with the electric driving mechanism and the gear transmission mechanism;
the middle part of the stop lever is rotatably arranged with the bracket and is suitable for elastic rotation on the bracket, one end of the stop lever is abutted with the knob switch, and the other end of the stop lever is suitable for shielding the manual operation opening;
the knob switch is rotationally arranged on the bracket and is respectively matched with the stop lever and the clutch mechanism; when the knob switch rotates to an on state, the knob switch drives the clutch mechanism to switch to a separation mode, and meanwhile, the knob switch drives the stop lever to move away from the manual operation port;
when the knob switch rotates to a closing state, the knob switch drives the clutch mechanism to switch to a linkage mode, and meanwhile, the knob switch drives the stop lever to shield the manual operation opening.
2. The electrically operated mechanism for a disconnecting switch according to claim 1, wherein,
the clutch mechanism comprises
The fixed shaft is fixedly arranged on the bracket;
the upper gear and the lower gear are rotatably arranged on the fixed shaft, and the lower gear is suitable for being elastically abutted with the upper gear upwards so as to enable the two gears to be connected in a key way and synchronously rotate;
the separation driving piece is sleeved on the fixed shaft and is suitable for moving up and down, the lower end of the separation driving piece is abutted with the upper gear, and the upper end of the separation driving piece is abutted with the knob switch; and
the two arc-shaped guide grooves are formed in the lower end of the knob switch, the bottom surfaces of the guide grooves are guide inclined planes and are abutted with the upper end of the separation driving piece;
when the knob switch rotates from off to on, the knob switch drives the lower gear to be separated from the upper gear through the separation driving piece; when the knob switch rotates from opening to closing, the upper gear is elastically reset upwards and is connected with the upper gear key.
3. The electrically operated mechanism for a disconnecting switch according to claim 2, wherein,
the separation driving piece comprises
The sliding block is sleeved on the fixed shaft and moves up and down along the fixed shaft;
the upper ends of the ejector rods are abutted with the bottom surface of the arc-shaped guide groove, and the lower ends of the ejector rods are abutted with the upper end surface of the lower gear.
4. The electrically operated mechanism for a disconnecting switch according to claim 2, wherein,
the knob switch is characterized in that the knob switch structure of the knob switch is that:
the upper end of the fixed shaft passes through the knob switch and is clamped with the baffle plate, and the baffle plate is abutted against the knob switch to limit the knob switch to move upwards;
the support is provided with a limiting sliding groove, the lower end of the knob switch is provided with a limiting sliding rod, and the limiting sliding rod is inserted into the sliding groove to guide the knob switch to rotate.
5. The electrically operated mechanism for a disconnecting switch according to claim 2, wherein,
the fixed shaft is sleeved with a pressure spring, the upper end of the pressure spring is abutted against the lower gear, and the lower end of the pressure spring is abutted against the bracket.
6. The electrically operated mechanism for a disconnecting switch according to claim 1, wherein,
the knob switch is circumferentially provided with a first concave part and a first convex part;
when the first concave part is contacted with a stop lever, the stop lever shields a manual operation port;
when the first protrusion contacts the stop lever, the stop lever is moved away from the manual operation opening.
7. The electrically operated mechanism for a disconnecting switch according to claim 1, wherein,
the knob switch is provided with a second concave part and a second convex part;
the bracket is provided with a first micro switch which is electrically connected with the controller;
when the knob switch is closed, the first micro switch is positioned in the second concave part, and the stop lever is in contact with the first concave part;
when the knob switch rotates to be turned on, the second bulge triggers the first micro switch, and the second bulge abuts against the stop lever.
8. The electrically operated mechanism for a disconnecting switch according to claim 1, wherein,
the bracket comprises a top plate, a bottom plate and a plurality of connecting columns;
the upper ends of the connecting columns are connected with the top plate, and the lower ends of the connecting columns are connected with the bottom plate.
9. The electrically operated mechanism for a disconnecting switch according to claim 1, wherein,
the electric driving mechanism comprises a stepping motor and a duplicate gear;
the double gear is rotatably arranged on the support, a large gear of the double gear is connected with an output gear on the stepping motor, and a small gear of the double gear is connected with the clutch mechanism.
10. The electrically operated mechanism for a disconnecting switch according to claim 1, wherein,
a protective cover is arranged outside the bracket, so that the whole bracket is wrapped in the protective cover;
the protective cover is provided with a jack which is vertically opposite to the manual operation opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321883505.8U CN220253117U (en) | 2023-07-18 | 2023-07-18 | Electric operating mechanism of isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321883505.8U CN220253117U (en) | 2023-07-18 | 2023-07-18 | Electric operating mechanism of isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220253117U true CN220253117U (en) | 2023-12-26 |
Family
ID=89226565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321883505.8U Active CN220253117U (en) | 2023-07-18 | 2023-07-18 | Electric operating mechanism of isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220253117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116759260A (en) * | 2023-07-18 | 2023-09-15 | 江苏洛凯机电股份有限公司 | Isolating switch electric operating mechanism |
-
2023
- 2023-07-18 CN CN202321883505.8U patent/CN220253117U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116759260A (en) * | 2023-07-18 | 2023-09-15 | 江苏洛凯机电股份有限公司 | Isolating switch electric operating mechanism |
| CN116759260B (en) * | 2023-07-18 | 2025-09-26 | 江苏洛凯机电股份有限公司 | Isolating switch electric operating mechanism |
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